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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_CanvasGradient_h
#define mozilla_dom_CanvasGradient_h
#include "nsTArray.h"
#include "mozilla/RefPtr.h"
#include "mozilla/dom/CanvasRenderingContext2DBinding.h"
#include "mozilla/gfx/2D.h"
#include "nsWrapperCache.h"
#include "gfxGradientCache.h"
namespace mozilla {
namespace dom {
class CanvasRenderingContext2D;
class CanvasGradient : public nsWrapperCache {
public:
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(CanvasGradient)
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(CanvasGradient)
enum class Type : uint8_t { LINEAR = 0, RADIAL, CONIC };
Type GetType() { return mType; }
mozilla::gfx::GradientStops* GetGradientStopsForTarget(
mozilla::gfx::DrawTarget* aRT) {
if (mStops && mStops->GetBackendType() == aRT->GetBackendType()) {
return mStops;
}
mStops = gfx::gfxGradientCache::GetOrCreateGradientStops(
aRT, mRawStops, gfx::ExtendMode::CLAMP);
return mStops;
}
// WebIDL
void AddColorStop(float offset, const nsACString& colorstr, ErrorResult& rv);
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override {
return CanvasGradient_Binding::Wrap(aCx, this, aGivenProto);
}
CanvasRenderingContext2D* GetParentObject() { return mContext; }
protected:
friend struct CanvasBidiProcessor;
CanvasGradient(CanvasRenderingContext2D* aContext, Type aType);
virtual ~CanvasGradient();
RefPtr<CanvasRenderingContext2D> mContext;
nsTArray<mozilla::gfx::GradientStop> mRawStops;
RefPtr<mozilla::gfx::GradientStops> mStops;
Type mType;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_CanvasGradient_h
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